Advantages of using a chemical reaction


 
 
Concept Explanation
 

Advantages of using a chemical reaction

The advantages for writing a chemical equation using formula and symbols are

  • The representation of a chemical reaction becomes easy. It saves time and space in writing.
  • In order to prepare a definite amount of the product, the amount of the reactant to be used can be calculated accurately.
  • The same chemical symbols are used all over the world and, therefore scientist faced no difficulty in understanding chemical equations.
  •  Helps in knowing the reactants and products
  •  Helps in knowing the relation between the quantities of reactants consumed and products formed.
  • It expresses the number of molecules of reactants and products.
  • It expresses the relative number of moles of the reactants and the products.
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    Sample Questions
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    Question : 1

    Which of the following are correct :

    (a) Chemical equation helps in knowing the relation between the quantities of reactants consumed and products formed.

    (b) Molecular formula helps to find out the exact number of atoms of different elements present in a molecule of the compound.

    Right Option : C
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    Explanation
    Question : 2

    Which of the following are correct :

    (a) Chemical equation helps in knowing the reactants and products

    (b) Writing a chemical equation takes to much time and space in writing.

    (c) Chemical equation helps in knowing the relation between the quantities of reactants consumed and products formed

     

    Right Option : C
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    Explanation
    Question : 3

    Which of the following are correct :

    (a) Chemical equation helps in knowing the reactants and products

    (b) Writing a chemical equation saves time and space in writing.

    Right Option : C
    View Explanation
    Explanation
     
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